A virus is ______ than a bacterial cell, and a virus is composed of a _________________.
A.
larger; nucleic acid within a protein capsid.
B.
larger; eukaryotic cell with a cell wall.
C.
smaller; nucleic acid within a protein capsid.
D.
smaller; eukaryotic cell with a cell wall.
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Question 2) It has been suggested that the lymphatic system evolved when animals became larger and the hydrostatic pressure in their circulatory systems rose. Explain how this suggestion is consistent with the function of the lymphatics
how does high blood pressure make lymphatic function essential? Also, what other advantages were gained by animals that developed lymphatic systems?
What will be an ideal response?
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Question 3) Malaria is a disease caused by a
A. multicellular parasite.
B. protozoan.
C. fungus.
D. virus.
E. bacterium.
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Question 4) The spleen is essentially a giant lymph node, because it is encapsulated, has trabeculae, and filters lymph to remove antigens.
Indicate whether this statement is true or false.
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Question 5) This figure shows the lymphatic system. Which number indicates the inguinal lymph nodes?
A. 1
B. 4
C. 5
D. 9
E. 10
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Question 6) This figure shows the lymphatic system. What structure does number 8 indicate?
A. Lymphatic nodule
B. Thymus gland
C. Cisterna chyli
D. Spleen
E. Adenoid
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Question 7) Which is not correct regarding the spleen?
A. It has an outer cortex and inner medulla.
B. It is divided into sections by capsular extensions called trabeculae.
C. Its white pulp contains T-lymphocytes, B-lymphocytes, and macrophages.
D. Its blood is supplied by the splenic artery and drained by the splenic vein.
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Question 8) This figure shows a lymph node and its components. What structure is indicated by number 4?
A. Medullary cord
B. Lymphatic nodule
C. Hilum
D. Trabecula
E. Lymphatic sinusoid
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Question 9) The germinal center of a lymphatic nodule contains proliferating B-lymphocytes and macrophages.
Indicate whether this statement is true or false.
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Question 10) The hilum of the spleen is part of its
A. concave anteromedial border.
B. concave posterolateral border.
C. convex anteromedial border.
D. convex posterolateral border.
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